Roundup 1.4.9 running at / (web server root) via the following wsgi script:

#!/usr/bin/env python
import sys
sys.stdout = sys.stderr
# obtain the WSGI request dispatcher
from roundup.cgi.wsgi_handler import RequestDispatcher
tracker_home = '/home/roundup/kolab'
application = RequestDispatcher(tracker_home)

An HTTP request triggers a traceback, which in turn gets emailed to the
admin.
The request is:
"OPTIONS / HTTP/1.0"

The traceback is:

Traceback (most recent call last):

  File "/usr/local/lib/python2.5/site-packages/roundup/cgi/client.py",
line 430, in inner_main
    self.determine_charset()

  File "/usr/local/lib/python2.5/site-packages/roundup/cgi/client.py",
line 559, in determine_charset
    if self.form.has_key('@charset'):

  File "/usr/lib/python2.5/cgi.py", line 618, in has_key
    raise TypeError, "not indexable"

TypeError: not indexable